Fall protection device for construction machinery

Abstract

There is provided a fall protection device (1) for a construction machine, comprising: a handrail (2); an attachment assembly (4); a plurality of columns (5) arranged at intervals along the X-axis of the Cartesian XYZ coordinate system of the fall protection device (1) and configured to support the armrest (2) and the attachment assembly (4) arranged at intervals and parallel to each other along the Z-axis of the Cartesian XYZ coordinate system; and a connection mechanism (6) for connecting the plurality of uprights (5) to the armrest (2) and the attachment assembly (4) such that the fall protection device (1) is movable between a transport position (A) and a working position (B) in a plane (XZ) formed by the X-axis and the Z-axis.

Description

Technical Field

[0001] This invention relates to a fall protection device. Existing technology

[0002] Construction machinery, especially road construction machinery (such as pavers), typically has an operator's station with a control panel, at least one driver's seat, and other controls, where one or more operators or drivers are located during operation. To provide a better overview of the machinery and for monitoring, maintenance, and operation, platforms or walkways are usually provided on one or both sides of the machinery to facilitate its operation.

[0003] These walkways are either fixed at the height of the operating station or are designed to be movable so that the height of the walkway can be adjusted according to the location of the work or inspection to be performed.

[0004] Because the operating station is usually located at a high position on the construction machinery, or must be operated at a high position, guardrails are usually attached to the sides of the walkway as fall protection devices. These guardrails also restrict access to the walkway, typically allowing entry only through openings in the guardrails from a limited area on one side of the construction machinery.

[0005] question

[0006] For example, traditional guardrails used as fall protection devices are permanently installed on construction machinery or can be assembled / disassembled as individual units. Alternatively, they consist of multiple parts that must be manually unlocked, moved manually from the transport location to the work location, and then locked again. The operator is positioned, for example, on a walkway, which, depending on the construction machinery's construction, may be located at a high position and also provides only limited space for assembling and disassembling the guardrails. Assembly is very time-consuming due to the large size of individual components and limited space, and there is a high risk of accidents during assembly and disassembly.

[0007] Therefore, the object of the present invention is to provide an improved fall protection device for construction machinery, which can be simplified in operation and shorten the installation time.

[0008] Solution to the problem

[0009] The fall protection device for construction machinery according to the present invention includes: a handrail; an attachment assembly; a plurality of columns spaced apart along the X-axis of the Cartesian XYZ coordinate system of the fall protection device and configured to support the handrail and attachment assembly arranged parallel to each other and spaced apart along the Z-axis of the Cartesian XYZ coordinate system; and a connecting mechanism for connecting the plurality of columns to the handrail and attachment assembly, such that the fall protection device can move between a transport position and a working position in a plane formed by the X-axis and the Z-axis.

[0010] The aforementioned fall protection device ensures a quick installation process and reliable assembly and disassembly.

[0011] Movement between the transport location and the operating location can be, for example, guided by a parallelogram or by a vertical guide.

[0012] Handrails can have open or closed profiles with different geometries (e.g., circular, cuboid, or elliptical). End caps can be installed on each end portion of the handrail. The end portions can be formed as curved. The length of one of the end portions is preferably designed to extend across the width of the walkway. Side protection devices can be attached to this end portion to prevent the operator from falling. The side protection devices can be U-shaped and have a circular, cuboid, or elliptical tubular shape. Multiple support elements can be formed on the handrail. The support elements are preferably rod-shaped and extend downward from the handrail in the Z-axis direction. In the working position, the support elements preferably serve as stabilizing elements. During the deployment and folding of the fall protection device, the support elements can serve as guiding aids.

[0013] Fall protection devices may include knee rails. Knee rails may be arranged parallel to and spaced apart from the handrails in the vertical direction (Z-axis direction). They may have a tubular shape similar to the handrails and are typically centered between the handrails and the attachment components. The distance between the knee rails and the handrails should not exceed 50 cm. More than one knee rail may also be installed.

[0014] The attachment assembly may include a base plate, a front sidewall, a rear sidewall, and two transverse sidewalls connecting the front and rear sidewalls to form an upwardly open box shape. Multiple posts may be arranged to be movable relative to the box shape. In an advantageous embodiment, the attachment assembly may be configured without a rear sidewall. The attachment assembly may be arranged to be movable relative to the multiple posts. The attachment assembly may be a fall arrestor or a toe plate of a railing.

[0015] Multiple posts are arranged at regular intervals along the longitudinal direction of the fall arrestor to support handrails and attachment components that are parallel to each other and spaced apart in the vertical direction. Each post can be attached to the inner surface of the front and rear side walls of the attachment components. The posts may have multiple holes to allow for the installation of handrails and attachment components at different heights, as well as optional knee guardrails, depending on specifications.

[0016] In one practical embodiment, the fall arrestor includes a handle for manually moving the fall arrestor between a transport position and a work position. Due to the handle, movement of the fall arrestor between the transport and work positions can be performed effectively and safely.

[0017] In one practical embodiment, the work position can be adjusted via a locking element. This prevents the fall arrestor from collapsing due to impact or operator leaning, which could potentially cause injury. The locking element can be configured to allow only one defined work position. Alternatively, the locking element can be configured to allow for individually adjustable work positions. In particular, the fall arrestor can be adjusted to different heights.

[0018] In a particularly advantageous variant, the locking element is formed on the attachment assembly. Specifically, the locking element is formed on the side opposite to where the side protection device is located. The locking element is used to lock the fall arrestor in the working position. In other variants, the locking element may be located on the same side as the side protection device.

[0019] Advantageously, the fall arrestor also includes a linear actuator for supporting movement between the transport and work positions. The linear actuator can be a gas spring. Since fall arrestors or guardrails used on construction machinery are typically made of metal and can sometimes be quite large, it is advantageous to provide mechanical support for deploying or folding the fall arrestor to further reduce the risk of injury. The linear actuator can be attached to an attachment assembly. The linear actuator can be housed in a recess formed in the attachment assembly. This prevents the operator from being hooked by the linear actuator, further reducing the risk of injury. The recess can be formed in the front side panel, the rear side panel, or both.

[0020] In linear actuators or electric cylinders, an electric motor serves as the drive unit. This is typically a servo motor. The motor can be coupled to gears, but usually the motor generates motion directly through a threaded spindle. The spindle can extend and retract by rotating left / right. Movement can be limited by the application itself or by limit switches. The linear actuator generates thrust to move the fall arrestor between transport position A and work position B. Arrival at transport position A and / or work position B of the fall arrestor can be indicated by outputting visual or acoustic signals.

[0021] Linear actuators offer several advantages: they are wear-free and require virtually no maintenance. Furthermore, they are easy to integrate without affecting the overall size, offer high repeatability, and can deliver significant forces to meet the specifications of fall protection devices. Additionally, linear actuators are self-locking, eliminating the need for additional locking mechanisms.

[0022] In one practical embodiment, the fall arrestor is supported in the transport position by its own weight. Furthermore, the fall arrestor can be locked in the transport position by a locking mechanism. This eliminates the need for additional locking elements, thus preventing increased costs and component count. Moreover, the installation process is improved. Through the box-shaped construction of the attachment assembly, multiple posts can be configured to be movable within the box-shaped attachment assembly, such that the transport position is limited by the height of the lateral sidewalls of the attachment assembly.

[0023] Advantageously, the connecting mechanism is a pivot joint at the connection point of multiple posts, such that movement between the transport position and the work position is guided by a parallelogram. The parallelogram guidance creates open degrees of freedom for adjustment. In particular, this allows movement around the pivot joint in the XZ plane. The pivot joint can be formed by holes formed in the posts and bolts inserted into the holes. The connection point is the attachment point between the post and the handrail, and the attachment point between the attachment component (if applicable) and the knee guardrail. Multiple holes can be formed along the longitudinal or extending direction of the post. Screws can also be used as pivot joints. In one practical embodiment, a handle is formed on one of the multiple posts. The handle can be attached to a side opposite to the side on which a side protection device is formed. The handle can be attached to the side of one of the posts. The operator grips the handle and moves the fall protection device by pulling it towards the work position and pushing it towards the transport position. By attaching the handle to the side, the fall protection device can be quickly and easily deployed and folded.

[0024] According to one embodiment, the locking element includes a latching element that engages with a mating element formed on one of a plurality of posts. This ensures the fall arrestor is securely locked in the working position. The latching element may be a latch pin attached to one of the posts, and the mating element may be an engaging element in the form of a recess formed in one of the posts. The recess may be formed in a guide element. The guide element may have a tapered guide surface configured to guide the latch pin toward and into the recess. A return spring may be formed in the latch pin, and its return force enables latching and unlocking. Latching and unlocking of the latch pin can be achieved by the operator manually moving the latch pin.

[0025] The latching element can be a latching tongue attached to an attachment assembly, and the mating element can be a latching element in the form of a recess formed in one of the posts. Alternatively, the latching element can be an intermediate member in the form of a rod-like element. In this case, the posts are configured as a double post, with the rod-like element arranged between the two posts. The locking element can be configured as a snap-lock, wherein the latching element is configured to be movable such that when the fall arrestor is moved to the working position, the former moves upward by pressure applied by the post with the recess or the intermediate member of the double post, and then latches into the recess or intermediate member. On the side where the latching element is formed, the locking element can include a return spring, the restoring force of which enables latching and unlocking. Latching and unlocking of the latching element can be achieved by the operator manually moving the fall arrestor. Alternatively, a locking / unlocking mechanism can be configured on the locking element to lock it in the working position and release it from that position. Instead of a double post, a single post in the shape of a metal plate bent into a C-shape can be used. In this configuration, an opening is formed in the side surface facing the latch bolt, through which the latch bolt engages with the intermediate member. Alternatively, the opening may also form a recess in which the latch bolt engages.

[0026] According to one embodiment, the fall arrestor is supported in the transport position by the weight of its attached components. In this case, no additional locking elements are required, thus preventing increased costs and a greater number of parts. Furthermore, the installation process is improved.

[0027] According to yet another embodiment, the connecting mechanism is a guide formed on the attachment assembly, such that movement between the transport position and the working position is vertically guided. The guide can be configured as a tubular element, optionally with a circular or cuboid cross-section, through which the column is guided. One or more, preferably two, tubular elements can be used. Alternatively, the guide can be configured as a collar arranged and attached around the column. In this case, one or more, preferably two, collars can also be used.

[0028] In this embodiment, the handrail may also have an open or closed profile with different geometries (e.g., circular, cuboid, or elliptical). Using the handrail, the fall arrestor or railing can be quickly and easily moved to the work position by pulling it up and automatically locking it. According to this embodiment, it can also be moved to the transport position in the same quick and easy manner by pulling the handle.

[0029] Handles are advantageously formed on the attachment assembly. By attaching the handles to the attachment assembly, the fall protection device or guardrail can be pulled to the transport position by the operator's hand or foot. The handles are preferably attached to the top side of the attachment assembly, particularly the top side of the rear sidewall. The handles may be located at the center of the attachment assembly. Furthermore, the length of the handles can be designed such that they extend beyond at least one-third of the length of the attachment assembly. The length of the handles may extend beyond half or the entire length of the top side of the attachment assembly. Alternatively, the handles may also be formed on the front surface of the attachment assembly. In this case, the length of the handles may also extend beyond one-third or half of the length of the attachment assembly, or beyond the entire length of the attachment assembly. In yet another advantageous variation, two handles may be formed on the top or front surface of the attachment assembly. The number and / or length of the handles can be selected according to the size and weight of the fall protection device.

[0030] According to an advantageous embodiment, the handle may be a trapezoidal rod having, for example, a circular or elliptical cross-section. The end portions of the trapezoidal rod are, for example, bent outwards such that they can be attached to the top side of an attachment assembly. The handle may be attached to a front or rear sidewall. A plate-like attachment member is disposed at each end portion and may be welded to the handle or connected by friction fit. Alternatively, the end portions of the trapezoidal rod may be formed as flat or plate-like. The plate-like attachment member has, for example, one or more through holes. The attachment plate may be attached to the inner surface of the front or rear sidewall. The attachment plate is formed, for example, L-shaped and attached to the front or rear sidewall such that the short legs of the L-shape are at the height of the top side and project inwards to serve as a support surface. The long legs of the L-shape may be attached to the inner surface of the front or rear sidewall using screws or bolts. The short legs of the L-shape include, for example, through holes corresponding to the number of through holes in the plate-like attachment member. The plate-like attachment member is secured to the attachment plate (e.g., using screws). An attachment plate can optionally be used as a reinforcement to ensure a secure attachment of the handle. The L-shaped legs can be of equal length.

[0031] According to one embodiment, the locking element is a screw-like element that interacts with the guide to lock the fall arrestor in the working position. The screw-like element includes a screw head and a shaft. The shaft of the screw-like element can be threaded or unthreaded. A latching element can be formed on the guide.

[0032] If the fall arrestor is brought to the working position by pulling upwards, it will automatically lock via a latching lock (in which a latching tongue engages in a recess). Pulling the handle releases the engagement between the latching tongue and the recess, allowing the fall arrestor to be moved to the transport position.

[0033] In addition, the attachment components may include a support member formed in a U-shape for receiving the knee guardrail when the fall protection device is in the transport position.

[0034] The fall protection device according to the invention can be constructed as a module, and depending on the construction machinery, two or more fall protection devices can be interconnected by screws.

[0035] Each of the previously described embodiments or advantageous improvements ensures a rapid installation process and safe assembly and disassembly of the fall protection device, while reducing the number of parts and saving costs.

[0036] In another aspect, the present invention relates to a construction machine having the fall protection device of any of the said embodiments. In particular, the construction machine may be a paver or a material supply vehicle for supplying material to the paver. Attached Figure Description

[0037] Figure 1 A perspective view of the fall protection device according to the first embodiment of the present invention in a transport position is shown;

[0038] Figure 2 A perspective view of the fall protection device according to the first embodiment of the present invention in the working position is shown;

[0039] Figure 3 It shows Figure 2 A partial view showing a locking element on an attachment assembly according to one embodiment, and showing a D portion along cross section AA showing a locking element on one of the columns according to yet another embodiment;

[0040] Figure 4 It shows Figure 3 An enlarged view of part D;

[0041] Figure 5 A perspective view of the fall protection device according to a second embodiment of the present invention in a transport position is shown;

[0042] Figure 6 A perspective view of the fall protection device according to a second embodiment of the present invention in its working position is shown; and

[0043] Figure 7 A detailed view of the connecting mechanism and locking element according to a second embodiment of the present invention is shown.

[0044] Figure 8 Construction machinery with fall protection devices installed on walkways is shown. Detailed Implementation

[0045] Embodiments of the invention will now be described in more detail with reference to the accompanying drawings. In the specification and drawings, the same or corresponding parts are designated by the same reference numerals and their descriptions are not repeated. In the drawings, some structures may be omitted or simplified for the purpose of simplifying the description.

[0046] In the embodiment, the X-axis, Y-axis, and Z-axis of the XYZ Cartesian coordinate system represent the length direction X, the width direction Y, and the height direction Z, respectively.

[0047] Figure 1 A perspective view of the fall protection device 1 according to the first embodiment of the present invention in transport position A is shown; Figure 2 A perspective view of a fall arrestor 1 according to a first embodiment of the present invention in working position B is shown. The fall arrestor 1 is configured to be attached to a guardrail of construction machinery (e.g., road construction machinery, such as a paver or a feeder for a paver). The fall arrestor 1 is attached along the extension direction (i.e., longitudinal direction) of an operator platform or walkway, for example, provided on one or more sides of the construction machinery, so that the operator can perform work or inspection at the construction machinery.

[0048] The fall protection device 1 includes a handrail 2 and an attachment component 4. The fall protection device 1 may also include a knee guardrail 9.

[0049] The attachment assembly 4 includes a base plate 41, a front sidewall 42, a rear sidewall 43, and two transverse sidewalls 44 connecting the front sidewall 42 and the rear sidewall 43 to form an upwardly open box shape. A recess 45 may be formed on the front sidewall 42 to receive a linear actuator 8 as an auxiliary device for manual movement by the operator between transport position A and work position B. As previously stated, the invention is not limited thereto, and if the recess 45 is formed, it may also be formed in the rear sidewall.

[0050] The handrail 2 is formed as a tube with a circular, cuboid, or elliptical cross-section. End caps 22 can be installed on the corresponding end portions 21 of the handrail 2. For example... Figure 1 and Figure 2 As shown, in a specific embodiment, one of the end portions 21 is formed to be longer to allow the side guard 24 to be attached thereto. In addition, a plurality of support elements 23 are formed on the handrail 2, these support elements 23 being formed in a rod shape and extending downward from the handrail 2 in the Z-axis direction.

[0051] Multiple posts 5 are arranged at regular intervals along the longitudinal direction of the fall arrestor 1 to support handrails 2 and attachment components 4 that are parallel to each other and spaced apart in the height direction. As an example, in Figure 1 and Figure 2Three posts 5 are shown. However, depending on the size of the fall arrestor 1, two or more posts 5 can be provided. Each of the multiple posts 5 can be formed as a single post or as two posts spaced apart from each other in the Y-axis direction, i.e., a double post. If the multiple posts 5 are formed as individual posts, they can be formed as metal plates bent into a C-shape, such as... Figure 1 and Figure 2 As shown.

[0052] Figure 1 and Figure 2 The connecting mechanism 6 shown is configured as a pivot joint 61 at connection point 62, which is actuated to provide parallelogram guidance. Connection point 62 is the connection point between each post 5 and the handrail 2, and between each post 5 and the attachment assembly 4. Joint 61 consists of a hole 611 formed in each post 5 and a bolt 612 forming a connecting member between a single post or two posts. The bolt 612 is installed so as to be rotatable in the hole 611.

[0053] The fall arrestor 1 also includes a handle 7, which is attached to the side or inside of one of the plurality of posts 5, such as... Figure 1 and Figure 2 As shown. The operator grips the handle and moves the fall arrestor by pulling it in the direction of the work position and pushing it in the direction of the transport position.

[0054] like Figure 1 As shown, at transport position A, the fall arrestor 1 is positioned on one of the transverse sidewalls 44 and held in that position by its own weight. At transport position A, the fall arrestor 1 has a parallelogram shape. At work position B, as... Figure 2 As shown, the fall arrestor 1 is in an upright position and has a rectangular shape. This means that by unfolding and folding multiple columns 5 within a plane defined by the X-axis and Z-axis directions, the fall arrestor 1 can be moved between transport position A and work position B. This ensures the rapid installation, safe assembly, and disassembly of the fall arrestor 1. At work position B, Figure 2 The retaining element 23 shown serves as a stabilizing element and as a stop when the column 5 is bent into a C-shape. During movement between transport position A and work position B, the retaining element 23 serves as a guiding aid.

[0055] Locking element 3 is installed on the fall arrestor 1 to securely lock the fall arrestor 1 in the working position B. Figure 3In the example shown, the locking element 3 is a locking element in the form of a latching tongue 31 formed on the attachment assembly 4, and a latching element 32, provided in the form of a rod-like element or a recess, is provided on one of the posts 5 such that the latching tongue 31 can engage with the latching element 32. The latching mechanism formed by the locking element 3 can be achieved by a return spring or manual locking. Alternatively, the locking element 3 is a latching bolt 10, such as... Figure 3 and Figure 4 As shown in part D of the diagram.

[0056] Figure 4 It shows Figure 3 An enlarged view of part D shows a modified locking element 3 according to a first embodiment of the invention. In this case, the locking element 3 is formed as a latching element by means of a latch pin 10 and a recess 11, the recess 11 being formed in a guide element 12 and the latch pin 10 engaging in the recess 11. To facilitate guiding the latch pin 10 into the recess 11, the guide element 12 has a tapered guide surface 15 along which the latch pin 10 slides. The locking element 3 is attached to one of a plurality of posts 5 by bolts 612. A return spring 14 is formed in the latch pin 10, the return force of which enables latching and unlocking. Latching and unlocking of the latch pin 10 can be achieved by the operator manually moving the latch pin 10.

[0057] Figure 5 A perspective view of the fall protection device 100 according to the second embodiment of the present invention in transport position A is shown. Figure 6 A perspective view of the fall protection device in the working position according to a second embodiment of the present invention is shown. Figure 7 Detailed views of the connecting mechanism and locking element according to a second embodiment of the present invention are shown. Figures 5 to 7 In this drawing, the parts corresponding to those in the first embodiment are indicated by the same reference numerals, and their descriptions will not be repeated.

[0058] Figure 5 and Figure 6 The fall arrestor 100 shown includes two uprights 5 with a circular cross-section integrally formed with the handrail 2. A knee guardrail 9 is also provided. More than one fall arrestor 100 can be installed, and they can be interconnected via attachment devices (not shown). The advantage of this modular structure is that the fall arrestor 100 can be used with any construction machinery because its length can be individually adjusted.

[0059] The second embodiment differs from the first embodiment in that the fall arrestor 100 is moved between transport position A and work position B via vertical guidance. To do this, the operator grasps the handrail 2, pulls it up, and automatically locks it, thus quickly and easily transferring the fall arrestor 100 from transport position A to work position B. If the fall arrestor 100 is brought to work position B by pulling it upwards, it can be automatically locked by a latching lock, such as... Figure 7 As shown, the latch tongue 37 engages in the recess 38.

[0060] To release the lock, the operator pulls handle 7 by hand or foot. This releases the engagement between the latch tongue 37 and the recess 38 of the latch lock 36.

[0061] The handle 7 is constructed in the form of a trapezoidal rod 71, with its end portion 72 bent outwards so that it can be attached to the top side 40 of the attachment assembly 4, such as... Figures 5 to 7 As shown. In this embodiment, the handle 7 is located on the rear sidewall 43. A plate-shaped attachment member 73 is provided at each end portion 72, which is welded or friction-fitted to the handle 7. The plate-shaped attachment member 73 includes two through holes. An attachment plate 74 is attached to the inner surface of the rear sidewall 43. The attachment plate 74 is formed in an L-shape and attached to the rear sidewall 43 such that the short legs of the L-shape are positioned at the height of the top side 40 and project inward (in the direction of the front sidewall 2) to serve as a support surface. The long legs of the L-shape are attached to the inner surface of the rear sidewall using screws 112. The short legs of the L-shape have two through holes. In this embodiment, each has two through holes. The plate-shaped attachment member 73 is secured to the attachment plate 74 using screws 110.

[0062] According to the second embodiment, the connecting mechanism 6 is a guide 63, which is constructed in the form of two cylindrical elements having a cuboid cross-section. The columns 5 are guided in the guide 63 so that they can be moved from transport position A (e.g., by means of the handrail 2) by means of the handrail 2. Figure 5 Move to work position B (as shown) Figure 6 (As shown). This is accomplished by pulling the handrail vertically upward using the handrail 2. In work position B, the fall arrestor 100 automatically locks via the locking element 3. In this example, the knee guardrail 9 serves as a stop to restrict movement from work position B to transport position A. A support 46 is formed on the inner surface of the base plate 41 of the attachment assembly 4, and this support 46 is configured in a U-shape to receive the knee guardrail 9. The shape of the support 46 corresponds to the cross-sectional shape of the knee guardrail 9. The fall arrestor 100 is moved from work position B to transport position A, where the operator grips the handrail, unlocks it using the handle 7, and then lowers it downward.

[0063] According to the second embodiment, the locking element 3 is a screw-shaped element 33 that interacts with the guide 63 to lock the fall arrestor 100 in the working position B, such as... Figure 7 As shown. The screw-like element 33 includes a screw head 34 and a shaft 35.

[0064] Figure 8 Construction machinery 200 is shown, particularly a feed trolley, which can optionally be used as a paver by attaching a screed to the flange of a drawbar, and has a walkway 201 and a fall arrestor 1. It goes without saying that the construction machinery 200 may also include a fall arrestor 100 according to a second embodiment. In addition to being attached to the walkway 201, or instead of being attached to the walkway 201, the fall arrestors 1, 100 may also be attached to an operating station.

[0065] It should be understood that the embodiments disclosed herein are illustrative in all respects and not restrictive. The scope of the invention is defined by the wording of the claims rather than by the foregoing description, and is intended to include all modifications within the scope and meaning corresponding to the wording of the claims. List of reference numerals

[0066] 1. 100% fall protection device (railing)

[0067] 2 Handrails

[0068] 10 latch bolts

[0069] 11 recess

[0070] 12 Guiding elements

[0071] 14. Return spring

[0072] 15. Conical guide surface

[0073] 21 End portion

[0074] 22 End Caps

[0075] 23 Supporting elements

[0076] 24 Side protection devices

[0077] 3 Locking elements

[0078] 31 Latch element

[0079] 32. Mating component (latch element)

[0080] 33 Screw-shaped elements

[0081] 34 Screw head

[0082] 35 shaft

[0083] 36 Latch element

[0084] 37. Latch tongue

[0085] 38 recess

[0086] 4. Attachment components

[0087] 40 Top side

[0088] 41 substrate

[0089] 42 Anterior sidewall

[0090] 43 Rear sidewall

[0091] 44 Transverse sidewalls

[0092] 45 recess

[0093] 46 Support components

[0094] 5 pillars

[0095] 6. Connecting Mechanism

[0096] 61 Pivot Joint

[0097] 611 holes

[0098] 612 bolts

[0099] 62 Connection Points

[0100] 63. Guide

[0101] 7 Handles

[0102] 71 Trapezoidal bar

[0103] 72 End portion

[0104] 73 Plate-shaped attachment elements

[0105] 74 L-shaped attachment plate

[0106] 8 Linear Actuators

[0107] 9. Knee guards

[0108] 110 screws

[0109] 112 screws

[0110] 200 Construction Machinery

[0111] 201 Corridor

[0112] A. Transportation location

[0113] B Work Location

Claims

1. A fall protection device (1, 100) for construction machinery (200), said fall protection device (1, 100) comprising: Handrail (2); Attachment component (4); and Multiple columns (5) are arranged at intervals along the X-axis of the Cartesian XYZ coordinate system of the fall protection device (1, 100) and are configured to support the handrail (2) and the attachment assembly (4), which are parallel to each other and spaced apart along the Z-axis of the Cartesian XYZ coordinate system. Its features The connection mechanism (6) for connecting the plurality of the columns (5) to the handrail (2) and the attachment assembly (4) is configured such that the fall protection device (1, 100) can move between the transport position (A) and the work position (B) within the plane (XZ) formed by the X-axis and the Z-axis.

2. The fall protection device for construction machinery according to claim 1, further comprising: The handle (7) is used to manually move the fall protection device (1, 100) between the transport position (A) and the work position (B).

3. The fall protection device for construction machinery according to any one of the preceding claims, wherein, The working position (B) can be adjusted by the locking element (3).

4. The fall protection device for construction machinery according to claim 3, wherein, The locking element (3) is formed on the attachment assembly (4) or on one of the posts (5).

5. The fall protection device for construction machinery according to any one of the preceding claims, further comprising: A linear actuator (8) is used to support movement between the transport location (A) and the work location (B).

6. The fall protection device for construction machinery according to claim 5, wherein, The linear actuator (8) is formed on the attachment assembly (4).

7. The fall protection device for construction machinery according to claim 5 or 6, wherein, The linear actuator (8) is received in a recess (45), which is formed in or on the attachment assembly (4).

8. A fall protection device for construction machinery according to any one of the preceding claims, wherein, The connecting mechanism (6) is a pivot joint (61) at the connection point (62) of the plurality of columns (5) such that movement between the transport position (A) and the working position (B) is parallelogram guided.

9. The fall protection device for construction machinery according to any one of claims 2 to 8, wherein, The handle (7) is formed on one of the plurality of posts (5).

10. The fall protection device for construction machinery according to any one of claims 3 to 9, wherein, The locking element (3) includes a latching element (10, 31) and a mating element (11, 32) formed on one of the plurality of posts (5) and capable of engagement.

11. A fall protection device for construction machinery according to any one of the preceding claims, wherein, The fall protection device (1, 100) is supported at the transport position (A) by its own weight.

12. A fall protection device for construction machinery according to any one of the preceding claims, wherein, The connecting mechanism (6) is a guide (63) formed on the attachment assembly (4) such that movement between the transport position (A) and the working position (B) is vertically guided.

13. The fall protection device for construction machinery according to any one of claims 2 to 12, wherein, The handle (7) is formed on the attachment assembly (4).

14. The fall protection device for construction machinery according to any one of claims 2 to 13, wherein, The latching element (3) is a snap lock (36) that interacts with the guide (63) to lock the fall protection device (1, 100) in the working position.

15. A construction machine (200) having a fall protection device (1, 100) according to any one of the preceding claims.

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